Ken Block reveals Gymkhana Seven Ford Mustang

The rally driver/viral video star has revealed this wild one-of-a-kind 1965 Ford Mustang notchback that will star in the Gymkhana Seven video.

Developed by Block's own Hoonigan Racing Division and Mustang specialists RTR the unique machine has been dubbed the 'Hoonicorn RTR' by Block.

Inspiration for the car came from Block's love of World Rally Cars, German DTM touring cars and even toy cars from his childhood.

"This is a project that I've been working on for two years, so to see it fully come to fruition and be able to drive it for Gymkhana Seven was absolutely amazing," Block said. "I also knew that working with [drifter] Vaughn [Gittin Jnr] and his RTR team was the right choice for this project since Mustangs are their world, but they really went above and beyond on this car. The attention to detail with the fabrication and bodywork blows my mind. This is hands-down the best Gymkhana car I've had yet."

The retro Mustang is a major departure for Block's Gymkhana videos, he has previously used rally or rallycross cars as the weapon of tyre-torture. The Gymkhana series started with a Subaru WRX STi before he switched to the Ford Fiesta from the third video onwards.

The Hoonicorn is not your average '65 'Stang. Under the bonnet is a 6.7-litre Ford V8 built by NASCAR experts Roush Yates Racing Engines that produces 630kW of power and 976Nm of torque.

That grunt is sent to all four wheels via an all-wheel drive system developed by transmission specialists Sadev.

Block revealed the car at the SEMA show in Las Vegas overnight having already finished filming the latest installment in his hit internet video series. Block and the Hoonicorn were caught filming in Los Angeles in October.

No release date has been set for Gymkhana Seven but it is expected before the end of 2014.